Scoring Methodology
How FitFixLife Scores Supplements
Every supplement on FitFixLife is scored out of 10 across six weighted factors. Scoring is led by Kazi Habib, B.Pharm, MBA, PMP using a published, repeatable methodology — never affiliate-driven and never sponsored.
The 6 scoring factors
1. Ingredient Quality
Weight: 25%Bioavailable forms over cheap-and-cheerful (magnesium glycinate or L-threonate, not oxide; vitamin K2 MK-7, not MK-4; methylfolate, not folic acid). No proprietary blends that hide individual doses. No controversial fillers like titanium dioxide, artificial colors, or sucralose. Standardized extracts where the science calls for them (e.g., curcumin with piperine, ashwagandha standardized to withanolides).
2. Clinical Dosing
Weight: 20%Doses must match the published clinical evidence. Magnesium for sleep: 200-400 mg elemental, not 50 mg. Creatine: 3-5 g/day, not "trace amounts." L-theanine: 100-200 mg, not 25 mg. Pharmacist review against PubMed-cited dose ranges. Underdosed supplements score 4 or below regardless of ingredient quality.
3. Third-Party Testing
Weight: 15%The FDA does not test supplements before market. Independent verification is the only way to know a product contains what its label claims. We recognize four certifications: NSF Certified for Sport (banned substance + label accuracy), Informed Sport (drug-tested athletes), USP Verified (identity, potency, purity), and IFOS (fish-oil-specific oxidation + heavy metals). Products with at least one of these score 8+ on this factor.
4. Value Per Serving
Weight: 15%Cost per clinically-effective serving, not cost per bottle. A $35 magnesium that lasts 60 days at the effective dose beats a $20 bottle that runs out in 20 days at half the dose. Compared against category median to flag overpriced premium-branding plays.
5. Halal Certification Status
Weight: 15%Only certifications from JAKIM (Malaysia), MUI (Indonesia), IFANCA (US), HFA (UK), or ESMA (UAE) count. "Halal-friendly" without third-party audit is flagged but not scored as certified. Products with porcine gelatin, alcohol-derived carriers in flavors, or non-zabiha animal collagen are flagged regardless of marketing claims.
6. Brand Reputation
Weight: 10%FDA warning letters, recalls, lawsuits, GMP violations, and known manufacturer transparency. Brands with current FDA warning letters cap at 5/10 regardless of product quality. New brands with no record score 7 by default until track record builds.
How the final score is calculated
Each factor is rated 1-10 against documented criteria. The factors are weighted as shown above, then summed. A product needs an average of 7.5+ to be considered for our "best of" lists, 8.5+ for "Best Overall" designation in any category.
We do not round up. A product that scores 7.49 is reported as 7.4, not 7.5. Transparent decimal scoring matters.
Try the interactive score
The dashboard below lets you input any supplement's specs (ingredient form, dose, third-party certification, price-per-serving) and see how it would score against our criteria. Useful when comparing brands the site hasn't reviewed yet.
Frequently Asked Questions
How is the FitFixLife Score calculated?
Each supplement is scored out of 10 across six weighted factors: ingredient quality (25%), clinical dosing (20%), third-party testing (15%), value-per-serving (15%), halal certification (15%), and brand reputation (10%). Scores are reviewed by Kazi Habib, B.Pharm, MBA, PMP.
What makes ingredient quality score high?
Bioavailable forms (magnesium glycinate vs oxide, vitamin K2 MK-7 vs MK-4), no proprietary blends hiding doses, no controversial fillers (titanium dioxide, artificial colors), and standardized extracts where applicable. Pharmacist-led ingredient review.
Why does third-party testing matter?
FDA does not test supplements before market. NSF Certified for Sport, Informed Sport, USP Verified, and IFOS (for fish oil) test for contamination, label accuracy, and banned substances. A supplement with NSF certification has been independently verified to contain what its label claims.
How is halal status verified?
We verify against five recognized halal certifying bodies: JAKIM (Malaysia), MUI (Indonesia), IFANCA (US), HFA (UK), and ESMA (UAE). Self-declared 'halal-friendly' claims without certification are flagged separately and never conflated with certified products.
Are affiliate relationships factored into the score?
No. Affiliate commissions do not influence scoring. Negative reviews and low scores are published when the data warrants, regardless of whether the brand pays an affiliate commission. Editorial independence is non-negotiable.
📊 Based on Your Results
See halal-certified picks across every supplement category